JPH04109929U - Hanger conveyance device in surface treatment equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a device that can automatically detect whether a hanger is properly engaged and prevent objects to be processed from falling. [Structure] A detector 12a is provided which detects the engagement state of the locking portions 7 at both ends of the hanger support arm 6 of the lifting cart 5 and the hook portion 11 of the conductive hanger 10 by the presence or absence of electricity. In addition, the height detection device 13 of the lifting cart 5 detects the height detection device 12a only when the locking portion 7 of the hanger support arm 6 is located above the height of the engagement position with the hook portion 11 of the hanger 10 on the processing tank 2. The presence or absence of detection is considered valid, and the hanger is
If 10 is removed, the alarm will not operate.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention uses electronic means to check whether the hanger is properly engaged with the hanger support arm. Regarding the hanger conveyance device in the surface treatment equipment equipped with the function of detecting the air It is something.

0002

[Conventional technology]

The hanger transport device in surface treatment equipment transports hangers using hanger support arms. It is used to raise and lower the hanger, but in the past, work involved checking whether the hanger was properly engaged. Because the worker was checking visually, the lifting cart was stopped only after the worker discovered the abnormality. In some cases, it may take a long time to complete the process, or in some cases, an abnormality may be overlooked. There were problems such as the suspended objects falling into the processing tank.

0003

[Problem that the idea aims to solve]

This invention solves the above-mentioned conventional problems and allows the hanger to be properly engaged. It is possible to automatically detect whether the A surface that can quickly stop the vertical movement of the unloading truck and prevent the objects to be processed from falling. It was completed to provide a hanger conveyance device in processing equipment.

0004

[Means to solve the problem]

This invention was created to solve the above problems. The locking portions at both ends of the hanger support arms of the lifted lifting cart and the guides engaged with the locking portions. A detector is installed to detect the engagement status of the hook part of the electric hanger based on the presence or absence of electricity. At the same time, the locking part of the hanger support arm is connected to the hook part of the hanger on the processing tank. Lifting that activates the detector only when it is located above the engaging position height It is characterized by being equipped with a cart height detection device.

[0005]

【Example】 Next, embodiments of the present invention will be described in detail based on the drawings. In FIGS. 1 and 2, 1 is a lifting guide that can move above the processing tank 2. The lifting guide 1 can run freely on a running rail 3 installed above the processing tank 2. It is vertically installed at the lower end of the provided transport vehicle 4 and is movable over the processing tank 2 . 5 is It is an elevating cart that moves up and down on an elevating guide 1, and a handle provided in front of the elevating cart 5. On both sides of the gar support arm 6, locking parts 7, 7 made of a conductive material and having a chevron-shaped cross section are provided. Ru.

[0006] The locking parts 7, 7 are insulated from the hanger support arm 6 by an electrically insulating plate 20. and is connected to the detector 12a of the carrier operation panel 8. Locking parts 7, 7 and detection The power supply 12b supplies the low voltage of about 12 to 24V, which is not harmful to the human body, to the device 12a. is being applied. The locking parts 7, 7 are located above both left and right ends of the hanger 10 for hanging the object 9. It engages with hook portions 11, 11 each having a chevron-shaped cross section. Hanger 10 is copper, steel It is made of conductive material such as stainless steel or iron, and both sides of the hanger support arm 6 are When the side locking parts 7, 7 properly contact both ends of the hanger 10, the current from the power supply 12b will be applied. The current flows into the detection circuit, and the detector 12a detects this electrically.

[0007] 13, the locking part 7 of the hanger support arm 6 is connected to the hook part 11 of the hanger 10 on the processing tank 2. A height detection device for a lifting trolley that emits a signal when it is located above the engaging position height of the It is. Although its configuration is not particularly limited, for example, it can be attached to the lifting cart 5. A detector 15 such as a limit switch that detects the detected plate 14 is placed on the lower side of the lifting guide 1. It can be attached to a surface. The carrier operation panel 8 is connected to this detection device 13. When the signal is emitted, if the detector 12a does not detect it, an alarm is issued. The structure is such that the elevating section of the elevating cart 5 is automatically stopped.

[0008]

[Effect]

The hanger conveyance device of the present invention configured as described above is a hanger support of the lifting cart 5. The locking parts 7, 7 provided on both sides of the holding arm 6 are connected to the hanger 10 on which the workpiece 9 is suspended. After engaging the hooks 11, 11, the lifting cart 5 is raised along the lifting guide 1 and transported. The carriage 4 is run along the running rail 3 installed above the treatment tank 2 to carry out the predetermined treatment. When it reaches the top of the processing tank 2, lower the lifting cart 5 along the lifting guide 1 and place it on the hanger 10. Dipping the suspended object 9 into the treatment tank 2 is a conventional method of this type. It is similar to the hanger conveyance device in the surface processing device.

[0009] However, in the present invention, as shown in FIGS. 5 and 6, the workpiece 9 is It shakes while moving and descends while shaking at the stop position, for example, the partition of treatment tank 2. Hook portion 11 of the hanger 10 that hangs the object 9 by contacting the plate 2a , 11 come off from the locking parts 7, 7 provided on both sides of the hanger support arm 6. , the current in the circuit of detector 12a is interrupted, and detector 12a detects this electrically. . At the same time, if the descent of the lifting cart 5 is automatically stopped immediately, the object 9 can be dropped. It is possible to prevent damage from occurring, and the alarm allows workers to immediately carry out recovery work. This allows the surface treatment line to be stopped to a minimum.

0010 Also, as shown in Figure 7, the stopping position of the lifting guide 1 has shifted from the normal position. Even if the workpiece 9 is pulled up incorrectly, the locking part 7 will be at the engaging position with the hook part 11. The hook portion 11 may not be correctly engaged with the locking portion 7 when it is located above the height. is detected electrically, the lifting cart 5 automatically stops and the lifting cart 5 is moved up and down while it is empty. This prevents the inconvenience of having to move the

[0011] Furthermore, as shown in FIG. The stop position of the lowering guide 1 is inappropriate, and the V-shaped leg 10a of the hanger 10 is not connected to the processing tank 2. One or both of the legs 10a of the hanger 10 are offset from the center of the V-shaped pedestal 2b. Even when it gets caught on the upper end, the locking part 7 and the hook part 11 are disengaged, so Similarly to the above, the detector 12a electrically detects this and immediately automatically stops the lifting cart 5. At the same time, an alarm is issued.

0012

[Effect of the idea]

As is clear from the above explanation, the present invention has a hanger support arm formed on both sides. If the hook part of the hanger is abnormally engaged with the locking part, this will be detected. It is possible to stop the lifting and lowering movements of the lifting cart and also issue an alarm. When the operation is stopped, there is no risk of objects falling and the worker can immediately start recovery work. The time can be shortened. This abnormality in engagement is detected by the presence or absence of electrical continuity. Since there are no moving parts, reliable detection can be performed over a long period of time. This detector also has a hanger. - Available only when the locking part of the support arm is above the height of the hooking position with the hanger hook part. It can also be activated by attaching and detaching the hanger during normal operation. do not have. Therefore, the present invention improves the hanger conveyance device in the conventional surface treatment equipment of this type. As it eliminates the problems, it has extremely great practical value.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway side view showing an embodiment of the present invention.

FIG. 3 is a partially cutaway side view of the hanger in a raised state.

FIG. 4 is a partially cutaway side view of the main part.

FIG. 5 is a partially cutaway front view showing a state in which the object to be processed is in contact with the partition plate of the processing tank when the hanger is lowered.

FIG. 6 is a partially cutaway side view thereof.

FIG. 7 is a side view showing a state in which a lifting error occurs due to an incorrect stopping position of the lifting guide.

FIG. 8 is a side view showing a state where an error occurs due to an incorrect stopping position of the lifting guide.

[Explanation of symbols]

1 Lifting guide 2 Processing tank 3 Traveling rail 4 Transport truck 5 Lifting trolley 6 Hanger support arm 7 Locking part 8 Carrier operation panel 9 Object to be treated 10 hangers 11 Kakehaku part 12a detector 12b power supply 13 Lifting trolley height detection device 14 Detected board 15 Detector

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[Procedural amendment]

[Submission date] March 11, 1991

[Procedural amendment 1]

[Name of document to be corrected] Drawing

[Correction target item name] Figure 8

[Correction method] Change

[Correction details]

[Figure 8]

Claims (1)

[Scope of utility model registration request] [Claim 1] Locking portions at both ends of the hanger support arms (6) of the lifting cart (5) that is attached to the lifting guide (1) so as to be able to rise and fall freely.
(7), (7) and the engaging state of the hook parts (11), (11) of the conductive hanger (10), which are engaged with the engaging parts (7), (7), are detected by the presence or absence of electricity. The locking portions (7) of the hanger support arm (6) are connected to the processing tank (2).
A height detection device for a lifting cart that activates the detector (12) only when it is located above the height of the engagement position with the hook portions (11), (11) of the hanger (10) located above. 13) A hanger conveying device in a surface treatment device, characterized in that it is provided with: